Predictive algorithms have been fully integrated into society for years, but some worry about the lack of knowledge behind the software that is being relied on to make major decisions in American courtrooms and in public policy offices.
We humans have been dropping "um," "uh" and other expressions of hesitation into our speech for a long time — maybe for as long as we've had language. More recently, linguists are noting a shift in usage across a number of Germanic languages from "uh" to "um."
Scientists are warning West African villagers to stop hunting bush meat and to stay away from fruit bats as they circle in a possible animal source for the latest Ebola outbreak. The Ebola virus lives in fruit bats, scientists believe, and is threatening communities who are already facing the deadliest Ebola outbreak in history.
Genetically modified crops are a big part of both our food supply and our debates about health and safety. But some scientists and observers argue those debates are getting the science of GMOs wrong, and grouping together crops that don't belong in the same argument.